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A mixed flight group of Strizhi and Russkie Vityazi (Russian knights) perform during the MAKS-2013, the International Aviation and Space Show, in Zhukovsky, outside Moscow, on August 27, 2013. AFP PHOTO/KIRILL KUDRYAVTSEVKIRILL KUDRYAVTSEV/AFP/Getty Images

Photo: Kirill Kudryavtsev, AFP/Getty Images

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A mixed flight group of Strizhi and Russkie Vityazi...

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A mixed flight group of Strizhi and Russkie Vityazi... Photo-5105148.69086 - SFGate

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Palestinian Khaled Zir sits with his children inside a cave in the east Jerusalem neighborhood of Silwan, Tuesday, Aug. 27, 2013. Zir said the family moved into a cave after their home was demolished by Israeli authorities. (AP Photo/Sebastian Scheiner)

Photo: Sebastian Scheiner, Associated Press

Palestinian Khaled Zir sits with his children inside a cave in the...

Palestinian Khaled Zir sits with his children inside a cave in the... Photo-5105149.69086 - SFGate

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MELBOURNE, AUSTRALIA - AUGUST 27: Paul Little chairman of Essendon arrives for the media conference at the Essendon Bombers AFL Commission Hearing at AFL House on August 27, 2013 in Melbourne, Australia. The AFL commission continues to meet today to discuss sanctions resulting from the Essendon Bombers' 2012 supplements program and the ASADA Investigation into the alleged use of banned substances at the Essendon Bombers FC. (Photo by Michael Dodge/Getty Images) *** BESTPIX ***

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A man spits fire during a protest in Bogota, Colombia, on August 26, 2013, in support of Colombian farmworkers demanding government subsidies and greater access to land. Since the protests began Monday, farmworkers have closed roads at dozens of points across the country, blocking the passage of cargo trucks and other vehicles from makeshift camps erected on sides of roads. AFP PHOTO/Guillermo LegariaGUILLERMO LEGARIA/AFP/Getty Images

People wait in long queues to buy train tickets for their hometown visit during the upcoming nation's biggest traditional holiday, Chusok,the Korean version of Thanks Giving Day, at the Seoul Railway Station in Seoul, South Korea, Wednesday, Aug. 28, 2013. The government expects the number of hometown visitors and holiday makers during the Sept. 18-Sept. 22 holiday will exceed 35 million.(AP Photo/Ahn Young-joon)

Photo: Ahn Young-joon, Associated Press

People wait in long queues to buy train tickets for their hometown...

People wait in long queues to buy train tickets for their hometown... Photo-5105153.69086 - SFGate

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A Ukrainian policeman reads a protocol of searching at the premises of the Ukrainian feminist movement FEMEN in Kiev on August 27, 2013. According to the press service of the organization, police found a gun, a grenade, portraits of Russian President Vladimir Putin and of Patriarch Kirill. Anna Hutsol, leader of the organization, told AFP journalist that it was a provocation organized by the security services against the activists of the organization. TOPSHOTS/AFP PHOTO/ SERGEI SUPINSKYSERGEI SUPINSKY/AFP/Getty Images

Photo: Sergei Supinsky, AFP/Getty Images

A Ukrainian policeman reads a protocol of searching at the premises...

A Ukrainian policeman reads a protocol of searching at the premises... Photo-5105152.69086 - SFGate

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A Palestinian tunnel worker speaks to a colleague from inside a smuggling tunnel dug beneath the Gaza-Egypt border in the southern Gaza Strip on August 27, 2013. Egyptian security forces have stepped up a crackdown campaign on smuggling tunnels between Egypt and the Gaza Strip since July, Hamas officials said. AFP PHOTO/SAID KHATIBSAID KHATIB/AFP/Getty Images

An Indian sadhu (L) walks on a flooded temple in Allahabad on August 27, 2013. Many areas in the northern Indian state of Uttar Pradesh are inundated from prolonged monsoon rains. TOPSHOTS/AFP PHOTO/ SANJAY KANOJIASanjay Kanojia/AFP/Getty Images

Photo: Sanjay Kanojia, AFP/Getty Images

An Indian sadhu (L) walks on a flooded temple in Allahabad on...

An Indian sadhu (L) walks on a flooded temple in Allahabad on... Photo-5105156.69086 - SFGate

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An image grab taken from a video shows an opposition fighter firing an rocket propelled grenade (RPG) on August 26, 2013 during clashes with regime forces over the strategic area of Khanasser, situated on the only road linking Aleppo to central Syria. Rebels had in recent days captured several villages in Aleppo province, much of which is already in the hands of anti-regime fighters, before taking Khanasser, situated on the highway to Hama in central Syria, thus cutting the army's only supply route to the northern province. AFP PHOTO / SALAH AL-ASHKARSALAH AL-ASHKAR/AFP/Getty Images

Photo: Salah Al-ashkar, AFP/Getty Images

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An image grab taken from a video shows an opposition...

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An image grab taken from a video shows an opposition... Photo-5103125.69086 - SFGate

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A member of the Islamist Syrian opposition group Ahrar al-Sham fires against a position of the Committees for the Protection of the Kurdish People (YPG), a militia set up to protect Kurdish areas in Syria from opposing forces, during clashes in the countryside of the northern Syrian Raqqa province on August 25, 2013. Syrian Foreign Minister Walid Muallem said on August 27 the UN mission investigating alleged chemical weapons attacks in Damascus has been delayed until the following after rebels failed to guarantee the experts' safety. AFP PHOTO/ALICE MARTINSALICE Martins/AFP/Getty Images

Photo: Alice Martins, AFP/Getty Images

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A member of the Islamist Syrian opposition group Ahrar...

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A member of the Islamist Syrian opposition group Ahrar... Photo-5105158.69086 - SFGate

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A firefighter tries to extinguish a wildfire in Talhadas near Oliveira de Frades, central Portugal, on August 26, 2013. AFP PHOTO/ PATRICIA DE MELO MOREIRAPATRICIA DE MELO MOREIRA/AFP/Getty Images

Photo: Patricia De Melo Moreira, AFP/Getty Images

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A firefighter tries to extinguish a wildfire in Talhadas...

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A firefighter tries to extinguish a wildfire in Talhadas... Photo-5105159.69086 - SFGate